Question

A train is moving at a uniform speed of 75 km/h.How far will it travel in 20 minutes.Find the time required to cover a distance of 250 km ​

Answer 1

1st Answer :-

23.33km

2nd Answer:-

3.6hrs

Step-by-step explanation:

S

o 20min = 1/3 hr

So it's speed is 70km/hr

So , in 1hr it can travel 70hr

in 1/3 hr , it will travel , 1/3×70 = 23.33km

So in 1 hr if it covers 70km

so 70 km is covered in 1hr

or 1km is covered in 1/70 hr

or 250km is covered in 1/70×250 = 3.57hrs

or approx. to 3.6 hrs

Answer 2

Answer:

ANSWER:

Given,

Speed = 75km/h

Time = 20 minutes

Then,

Let the distance be x

distance = time x speed

x = 75km/h x 20 min

but first , we will convert per hour into min

so, 75km/h = 75km/60min

Now,

Let the time be y

y = 75/60 x 20

y = 25 km

distance = 25km

and

time = distance / speed

y = 250 km / 75km/h

y = 250 x 1/75 h

y = 9/3 = 3 whole 1/3 h